Boiler and heater



June 26, 1923.

P. O. ROTH BOILER AND HEATER Filed July .21 1921 5 Sheets-Sheet lWITNESSES MKWM ATTORNEYS June 26, 1923.

P. O. ROTH BOILER AND HEATER Filed July '21, 1921 5 Sheets-Sheet 2flllllllllm n INVENTO/i Perez 0. 1617' ,4 TTOH/VEYS WITNESSES June 26,1923.

. 1,46@,Z80 P. 0. ROTH BOILER AND HEATER Filed July 21. 1921 5Sheets-Sheet 5 L A ,L

I m PereeQfirH June 26, 1923.

P. O. ROTH BOILER AND HEATER Filed July 21. 1921 5 Sheets-Sheet 4INVENTOR Pen/s2 0. 162m A TTOH/VEYS June 26, 1923.

P. O. ROTH BOILER AND HEATER Filed July 21 1921 5 Sheets-Sheet 5INVE/VTUI? PEI-EEO; 5,7

WI T/VE 88E 8 rren srares' PAT r orFicE.

PETER O. ROTH, OF NEW YORK, N. Y.

BOILER AND HEATER.

Appiication filed July 21,

T all whom it may concern.

Be it known that I, Purim 0. Born, a citizen of the United States, and aresident of the city of New York, Middle Village, borough of Queens, inthe county of Queens and State of New York, have invented a new andImproved Boilerand Heater, of which the following is a full, clear,andexact description.

This invention relates to steamboilers and heaters and has for an objectto provide an improved construction over my prior Patent No. 1,272,113,issued July 9, 1918.

Another object of the inventionis to pro{ vide an improved constructionof means for causing the water in the boiler to absorb more of the heatunits passing through the flues the arrangement,being adjustable to takecare of different conditions of fire, boiler and the like.

A further object of the invention is to provide an improvedarrangementof'spiral sections for boiler tubes together with means for moving themto an aligned position or a spiral position. i i i A still furtherobject of the'in vention is to provide an improved arrangement ofbattling or deflecting means for boiler tubes together with a system ofoperating members at the end of the boiler which may opcrate any desiredseries of bafiies.

An additional object is to provide not only baffling means for boilertubes but animproved arrangement of air or steam injection therein whichwill tend to produce a better combustion and a better draught.

In the accompanying drawings Figure 1 is a sectionalfview through aboiler and furnace showing one embodiment of the invention with certainparts illustratedin elevation. i Figure 2 is an enlarged. fragmentarysec: tional view showing certain details of baffle construction andarrangement for steam injection. i i i F igure. 3 is a detailfragmmrtaryfront view ofone of the battle supporting elements. I i iFigure lis aplan view of the structure shown in Figure 3. i l igureii is:1 plan view of a washer disclosing certain :leatures of the invention;

Figure 6 is a sectional view of adriving wheel embodying certainfeatures of the 1921. Serial No. 486,409.

invention, said section being taken approximately on line 66 of Figure3.

Figure 7 is a fragmentary sectional view through Figure 2 on line 7- 7.

Figure 8 is an interior elevation of part of the supporting box shown inFigure 3.

Figure 9 is a sectional view through Figure 8 on line 9-9.

Figure 10 is a top plan view of the structureshown in Figure 8,. y i yFigurell is an inside elevation of the second half of the box shown inFigure 3.

Figure 12 is a sectional view through Figure 11 on line 12-12. 1 c

Figure 18 i a top plan view ofthe struc; ture shown in Figure 11. i v 1Figure 1 1 is a front view of the bar and associated parts shown inFigure 1. i s Figure 15 is an enlarged fragmentary sectional viewshowinga single boiler tubewith a bathing structure arranged therein, saidbattling structure embodying certain features of the invention.

Figure 16 is a sectional view through Figure 15 approximately on line16-16.

Figure 17 is a viewsimilar to Figure 15 but showing the parts in anoperated or spiral position i i i Figure; 18 is an enlarged fragmentaryview showing more in detail the particular structure of the spiralsections. v 1

Figure 19 is a sectional view through Figure 18con line 1919. I c i Figure 20 is a perspective view of the spiral member shown in Figure 18.

Figure 21 is a detail perspective view similar to that shown in .Figure20 but showing a modified form of shoulder. W

Figure 22 isa view similar to Figure2 but showing a modified form of theinvention wherein the device is adapted to be used for heating water orsuperheating steam. I i

Referring to the accompanying drawings by numeral, 1 indicates a furnace.ofcany desired type and 2 a tubular boiler provided with any desirednumber of heating tubes There is aspace 4 arranged. at the rear of theboiler 2 and a chamber 5 arranged in the-front part of the boiler, saidchamber beingusuallv found in 'boilers of this type. The chamber 5 isutilized in accommodating certain pipes. gearings and other partsembodying certain features of the ininto the tubes at different pointsfor increasing the combustion in the tubes and also for increasing thedraught. As shown in this figure, the tubes 8 are provided with abatfling structure 6 consisting of a number of independent spiralsections 7 mounted on a suitable tube 8 and freely rotatable thereon. Ifdesired, the tube 8 may be one continuous tube for supporting thesection 7 but preferably it is formed in a number of parts connected bytubular connectors 9, each of said connectors having one or moreinclined apertures 10 whereby' steam forced into the tubes will bedischarged at a number of points in the boiler tube 3, Arranged at oneend of each of the tubes 8 is a gear wheel 11 having a plurality ofgears or projections 12 designed to straddle the web of the end spiralsection 7 as shown in Figure 15 whereby when the gear wheel 11 isrotated, the section 7 will be moved into a spiral formation or into analigned formation according to the direction of movement of the gearwheel From Figures 15 to 19, it will be observed that the batting member6 is formed from a large number of spiral sections 7 con structed asshown in Figure 20. Each section is formed with a tubular body 13adapted to fit over the tube 8 and with a pair of semi-tubular portions14 and 15, said semi-tubular portions being less than a half tube andarranged to project beyond the tubular portion 13 at each end so as tooverlap the ends adjacent the tubular portion 13. By reason of the factthat the portions 14 and 15 are less than a half tube, there isprovideda loose motion in a circle so that when the sections 7 arerotated in'one direction, the respective portions 14 and 15 will strikethe webs 16 and 17 of the next adjacent sections 7 and cause analignment of the respective sections as shown in Figure 16. If rotatedin the opposite direction, these same portions 14 and 15 will engage ontheir opposite edges the webs 16 and 17 and cause aspiral formation asshown in Figure 17. On some occasions it may be desirable to havecertain of the sections formed in spiral relation as shown in Figure 17while others are arranged in alignment as shown in Figure 16. In orderto accomplish this result. the respective gear wheels 11 are rotated forone or more revolutions and the result will causethe device to appear asshown in Figure 1. It will be noted that the gear 1] and associatedparts are at the forward end of the boiler so that when moving the partsto a spiral position, the end of the bafiiing members toward the frontof the boiler will be first formed into a spiral;

lVhen the parts are as illustrated in Figure 1, the flame may freelypass through the rear part of the tube 3 but is checked at the frontpart for permitting the water in the boiler to absorb heat unitstherefrom. The rear ends of the bathing members are connected withsuitable plates 18 as shown in Figure 2 so as to beheld against rotationwhereby the various spiral sections 7 may be freely moved until all arearranged in spiral relation or until all are arranged in alignment. Theplates 18 may form any suitable or desirable framework to properly actas a fixed holding member. At the front a more elaborate arrangement isprovided which consists of a number of metal frames 19, each frame 19being provided with sections 20 and 21, said sections interlocking forforming a housing for receiv ing the respective gears 11. It will alsobe noted that the section 20 is provided with a journal box 22 whichsupports the tube 8. Each of the sections 21 is provided with achamfered corner 23 and a lug 24 at the corner. If desired, a similarstructure may be provided in section 20 so as to accommodate therespective washers 25 and suitable bolts 26 whereby the various frames19 are secured together in a nested formation as shownin Figure 7. hennested in this manner the boxes 22 are in a line with the center oftubes 3 s0 as to properly support said tubes and permit a free rotationof the spiral member 7 arranged loosely thereon. It will be noted thatby this construction a built-up spiral or framework is produced whichencloses the respective gear wheels 11 but permits any one gear wheel tobe removed at any time together with its Operation of spiral member 7and other parts without disturbing the remaining gear wheels or othermembers. All of the frames 19 are of the same size except those at theperiphery which are bolted by the bolts 26 to the flange 27. Theseframes are merely cut off sufficiently to produce a proper fit.

while the remaining frames are of the same size and shape and all of thegear wheels 11, are also the same size and intermesh. This willnaturally cause a reverse rotation of certain of the gears in respect tothe plates. It will, of course, be necessary to make the adjacent spiralmembers 7 operate in reverse direct-ions so that all of the spiralmembers may be thrown into a spiral or removed from a spiralsimultaneously. As all of the gears 11 are in mesh, they may be drivenby a single power gear 28 secured to a stubshaft 29;carrying1a-bevelgear 30.. This bevel gear is supported by a, suitable.

bracket .31 bolted or otherwise secured to one of the .frames 19 and thebevel-gear 3O ,meshes with a driving .gear32 secured to shaft 33. p Thisshaft vextends joutwardly through a box 34. and is provided. with a handwheel 35.whereby the various gears 11 s)iral members .7 andassociatedimembers maybe properly. actuated .at anytime. A notchedwheel-.36 isrigidlysecured to the. shaft 33 andco-acts with ainanuallyactu ated and pivotally mounted catch her 37,- pivotally connected withthe box 34.

When it is desired to rotate the shaft 33,

the catch .bar 37 is raised and. the shaft .ro-q tatedto the desiredextent. Thelever 37 is. then moved downwardly into one of the notches of.member 36.,and; thereby l ocks ;all of the parts against accidentalmovea ment. In order. to permitthe operator to know the exact conditionof the respective spiral members '1 a dial 38 isrprovided on box 34 overwhich the pointer 39 moves.

. The dial is calibrated to show the exact position of thespiral nembers7 according to the position of the pointer 39. r The pointer 39 isrigidly secured to a shaft 40, which shaft. is keyed or otherwisesecured to a ,gear wheel 41 meshing with a pinion 42 loosely mountedonthe shaft 33 but n'gidly secured to a gear wheel :43 meshing with pinion44 loosely. mounted on shaft tO', The pinion 44-, is rigidly secured toagear wheel 45:,meshing with a pinion .46, said pinion 46. being keyedor. otherwise rigidly con: nected with shaft 33.

will cause the pointer 39 to move inproportion to the movementofthespiral. members7.

In 1*iguresl, 2 and 14 will be seen, what maybe termed, an 'ejectingmechanism for steam .co-acting with thespiral member 7 and the tube 8. Amixture of ag'certaiir quantityof steam with the .gases i n the tube. 3has been found to be beneficial in respect to producing a betterchemical union; and, consequently, a bettercombustion 01", the

: gases. In addition. the use of jets of steam; inthe tubes 3 w llincrease the draught. In.

forming a structure for carrying out these purposes, the tubes 8 areutilized not onlyas a support forthe spiral section 7 but ha s y apassage-way for, the steam. These tubes are divided into sections byconnecting? sleeves 9, 'each sleeve'having a series ofuap-' ertures 10extending in such a direction that the et of steam willbe dischargedtoward the discharge end of the respective tubes In the .tubes 8, astationai'y1block 47 mav be provided. as shown in Figure 2 or a slid-1ing block 48. If desired, both of these (lividing members may be used.in. thesame boiler.

at the same time. These dividing members In this. way a re? ducing trainof gears lSJQIOVldBd wh ch are providediso thatsteain may be admitted yat either end or at both ends and even dis tributedto theopenings .101 Adistributing 110x49 is connected'with each tube Swat each endand aheader connected to-each series of boxes 49.-.'The respective headers ware connected to a suitable single source of steam supply. In each lottheboxes 49a 3 through the various apertures 10.0f the varioussleevesIncasethe sliding. block 48 is used the pressure of the steam in the respective boxes 49 ateach end is the same and,

consequently, the block 48 will automati cally positionitselfinflthecenter and allow thesai ie to be distributed as if it were .fixed.

lVhe'retliestationary block47 is used, steam.

must be. admitted at bothends in order to a use all of thesleevesQwhereas ifthe slide ingJblock 4-8 is used, steammay be admitted at bothends or at either'end. When admitted at one: end,. block 48v is forcedto the opposite end and steam is thereby permitted. to easily pass outthe apertures 10 in all of.

the sleeves 9. It is, ofcourse, evident that suitable valves may beprovided asshown in Figure, 14 :or. other means .ofcontrol may beprovided for the steam. :Inadditionnto the uselor" steam for-the purposespecified orior any other purpose, air 'may be used which iswusuallymoreetfective in cleaning out soot from. the tubes than'steam.Ifdesired,

steam can be turned-off-from the pipes 50 andzairr-turned on whenever itis desired to clean the tubes'fromsootand after the cleaning operation;if steam is desired, the

air'could be turned offend steam admitted. though the use-of ace'i'tai'n quantity of air inthe tubes will. produce desirable result-swith certain kinds of fuel. ItwiS. therefore,

evident that either steam or air may be freely used-for:either cleaningor assisting thencombustion or assisting the draught.

.In Figure 21 will be seen a slight modified tormt of spiral memberwherein the shoulders 14 and 14" extend from. the same end ofthetubular-body.-

Referring to Figure 22, it will be seen that the tubularconnectingmembers 9' are solid instead of perforated as in the preferredform. eIn this form of the invention a pipe is, connected to a suitablesource of'steams'upplyand the steam is allowed to pass into the .tube- 8.andirom" thence through the opposite header and out the discharge pipe53 where it" may be usedas superheated steam. l If desired, thisarrange" 'ment could be provided for any or all of the flues thoughordinarily it is used only with the upper flues. This will permitthetubes 8 in the lower fines to be used as water heaters.

When used as water heaters the water is passed in through the pipe 54 tothe header at one end of theboiler and from thence through the lowertube '8' to the header at the opposite end and from thence out thedischarge pipe 55 to any suitable point. As the bottom-of the boiler iscooler than the upper part, the tubes in the lower flues are preferablyused for heating-water while the upper tubes are preferably used forsuperheatingsteam though if desired all of the tubes could be utilizedfor either purpose by a proper connection of thetubes,

What I claim is 1. In a. device of the character described, thecombination with a boiler haxing fines, of means for retarding thepassage of the flame and the products of combustion through said flues,said means comprising a centralsupporting member extending longi-btudinally through each of sa'idflues, a plurality of sleeves rotatablymounted on said supporting member and provided with spiral formed webs,each of said sleeves having an overhanging section for transmittingrotary motion to the next adjacent section, and means forrotating theend sleeve in each of the flues. i f

2. In a device ofthe character described, the combination with a boilerhaving a flue therein, of a supporting tube extending lon- I ings.-

3; In a device of the character described, the combination with a boilerhaving a flue, of adjustable bafiling means arranged in said. flue,means for adjusting said baflling means-to retard to a greater or=lessextent the passage of flame and articles of combustion through the flue,a tube extending through saidflue having a number of open ings, andmeans for supplying steam under pressure to said tube, said meansincluding a box for distributing the steam to the tube and a supplyheader for maintaining the pressure of steam in said box.

,4 Inia device of the character described, the combination with a boilerhaving a plurality' of flues. therein,-of bafiling members arranged insaid flues, said baflling members being adjustable to retard to agreater or less extent the passage of flame or products of combustionthrough the flues, a gear whee-l secured to each of said bathing membersfor adjusting the same, the gearwheels rality of flues, of bafliingmeans arranged 1n each. of said flues, means for varying the bathingaction thereof, a tube in each flue for supporting the bafliing means,said tubes having a plurality of apertures, a division block arranged insaid tubes, and means for supplying steam to both ends of the varioustubes.

6. Ina device of the character described, the combination with a boilerhaving aplurality of flues a battling structure arranged ineach of theflues, means for adjusting the various battling structures for causing ava riation in the battling action, a tube extending through each of saidflues, said tubes being provided with apertures extending substantiallyin line with the line of draught, a slidable block arrangedin each ofsaid tubes, and means at each end of said tubes for supplying steamunder pressure thereto whereby when steam is supplied from both ends thesliding block will remain substantially centrally in the tube and whensupplied toone end will move to one end of the tube for permitting steamto escape out of all of said apertures.

7. In a device of the character described, the combination with a boilerprovided with a plurality of flues, a bailling structure arranged ineach flue, means forshifting the position of said baiiling structureforincreasing and decreasing the bafliing action thereof, a supportingmember extending through each flue for supporting the battling structuretherein, and a'supporting framework for said supporting means, saidsupporting framework being provided with a plurality of frames and boltsfor connecting the frames together, each-of said frames being formedinto a pair of sections having interlocking parts positioned to make asolid frame when said bolts are in position.

8. In a device of the character described, the combination witha boilerhaving flues, of baffling members arranged in said flues formed withspiral baiiling sections. and t'ubular; supports, and means fordirecting fluid into any of said tubular supports.

PETER O. ROTH.

